\begin{table}%T4
\par
\caption{\label{tab:dust_species}Overview of dust species used in fitting the 5$-$17~$\mu$m spectrum$^*$.}
\small%\centerline
{
\begin{tabular}{l@{\hspace{2.5 mm}}l@{\hspace{2.5 mm}}l@{\hspace{2.5 mm}}l@{\hspace{2.5 mm}}l}
\hline\hline\\
 Species                & State & Chemical            & Shape & Ref. \\ 
                        &       &  formula             &      &   \\
	      \hline
 Amorphous silicate     & A     &  MgFeSiO$_{4}$       & Homogeneous           & (1)  \\
 (olivine stoichiometry)&       &                     &  sphere             &  \\
 Amorphous silicate     & A     &  MgFeSi$_{2}$O$_{6}$ & Homogeneous     & (1)  \\
 (pyroxene stoichiometry)&      &                     &  sphere            &  \\
 Forsterite             & C     &  Mg$_{2}$SiO$_{4}$   & Hollow sphere & (2)   \\
 Clino Enstatite        & C     &  MgSiO$_{3}$         & Hollow sphere & (3) \\
 Silica                 & A     &  SiO$_{2}$           & Hollow sphere & (4)  \\
\hline
\end{tabular}}
\smallskip
\medskip
$^*$ References: (1) \citet{ref:dorschner_1995};
 (2) \citet{ref:servoin_1973}; (3) \citet{ref:jaeger_1998}; (4) \citet{ref:henning_1997}.
 \vspace*{-2mm}
 \end{table}